<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录界面</title>
    <style>
        .form_conn{
                width:500px;
                height:600px;
                background: #f2f2f2;
                margin:50px;
                padding:20px


    }</style>
</head>
<body background="#0af560">
<div class="form_conn">
    <form>
    <p >
        <label>用户名：</label><input type="text" name="loginname" id="name" placeholder="请输入登录名">

         <label>密  码：</label><input type="password" name="pwd" id="password" placeholder="请输入密码">
    </p>
    <p><input type="submit" pattern="登录"></p>

    </form>
</div>

</body>
</html>